NVIDIA RTX PRO 4000 Blackwell SFF vs NVIDIA L40 CNX
GPU Specs Compare
Graphics Card
Release Date
Aug 2025
Oct 2022
Generation
Blackwell PRO W
Tesla Ada
Type
Desktop
Professional
Bus Interface
PCIe 5.0 x8
PCIe 4.0 x16
Clock Speeds
Base Clock
577 MHz
1005 MHz
Boost Clock
1432 MHz
2475 MHz
Memory Clock
1125 MHz
2250 MHz
Memory
Memory Size
24GB
24GB
Memory Type
GDDR7
GDDR6
Memory Bus
192bit
384bit
Bandwidth
432.0GB/s
864.0GB/s
Render Config
SM Count
70
142
Shading Units
8960
18176
TMUs
280
568
ROPs
96
192
Tensor Cores
280
568
RT Cores
70
142
L1 Cache
128 KB (per SM)
128 KB (per SM)
L2 Cache
48 MB
48 MB
Theoretical Performance
Pixel Rate
137.5 GPixel/s
475.2 GPixel/s
Texture Rate
401.0 GTexel/s
1406 GTexel/s
FP16 (half)
25.66 TFLOPS
89.97 TFLOPS
FP32 (float)
25.66 TFLOPS
89.97 TFLOPS
FP64 (double)
401.0 GFLOPS
1406 GFLOPS
Graphics Processor
GPU Name
GB203
AD102
Architecture
Blackwell 2.0
Ada Lovelace
Foundry
TSMC
TSMC
Process Size
5 nm
4 nm
Transistors
45.6 billion
76.3 billion
Die Size
378 mm²
608 mm²
GPU Variant
-
AD102-???-A1
Board Design
TDP
70W
300W
Suggested PSU
250 W
700 W
Outputs
4x mini-DisplayPort 2.1b
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
None
1x 16-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.4
1.3
CUDA
12.0
8.9
Shader Model
6.8
6.6